Structural and Magnetic Phase Transitions in MineralsS. Ghose, J.M.D. Coey, E. Salje This volume in Advances in Physical Geochemistry presents the latest synthesis of theory and experimental data pertaining to structural and magnetic phase transitions in a variety of geochemically important minerals. The book is the first to cover the impact of this rapidly progressing area of solid state physics in earth sciences and reflects its growing significance for mineralogy and petrology. |
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Page 188
... decreases in a manner similar to the Brillouin functions . But while in Co2SiO4 the moment on M1 decreases like that on M2 , in Mn2SiO4 and Fe2- SiO4 it falls off very quickly when the temperature increases above 0 K. The direc- tion of ...
... decreases in a manner similar to the Brillouin functions . But while in Co2SiO4 the moment on M1 decreases like that on M2 , in Mn2SiO4 and Fe2- SiO4 it falls off very quickly when the temperature increases above 0 K. The direc- tion of ...
Page 200
... decreases , and decreases smoothly . The case of M Co is illustrated in Fig . 12c . This corres- ponds to Abb > Aic , with Ah such that the easy axis lies about 16 ° away from b . The difference Abb Acc being high , the slope of the ...
... decreases , and decreases smoothly . The case of M Co is illustrated in Fig . 12c . This corres- ponds to Abb > Aic , with Ah such that the easy axis lies about 16 ° away from b . The difference Abb Acc being high , the slope of the ...
Page 201
... decrease , when the temperature decreases below 14 K , can be correlated with the decrease in the a component of the spins on M1 due to the increasing cant- ing . Modes Fi and Gi are related through Ata , while F ; and G ; are related ...
... decrease , when the temperature decreases below 14 K , can be correlated with the decrease in the a component of the spins on M1 due to the increasing cant- ing . Modes Fi and Gi are related through Ata , while F ; and G ; are related ...
Contents
Preface | 1 |
Incommensurate Phase Transitions in Quartz and Berlinite | 17 |
Phase Separation in Quadrilateral Pyroxenes and Olivines | 39 |
Copyright | |
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Other editions - View all
Structural and Magnetic Phase Transitions in Minerals S. Ghose,J.M.D. Coey,E. Salje Limited preview - 2012 |
Structural and Magnetic Phase Transitions in Minerals S. Ghose,J.M.D. Coey,E. Salje Snippet view - 1988 |
Common terms and phrases
a-ẞ transition anisotropy ANNNI model antiferromagnetic atoms axis Bachheimer Ballet behavior berlinite Bukowinski calculated canting cation distributions Chem chemical cluster Co₂SiO4 Coey components composition coupling crystal field crystal structure crystallographic decreases density disordered Dolino Earth Planet electron entropy equilibrium experimental Fe² Fe2+ Fe2SiO4 Fe³ feldspar ferromagnetic free energy Fuess Geophys Ghose grunerite high-spin ilvaite inc phase incommensurate phase interactions ions Jeanloz Landau theory lattice layers Lindsley long-range order low temperatures lower mantle LS transition M2 sites magnetic order Magnetic properties magnetic structure Matsui measurements MgSiO3 Mineral Mn2SiO4 Mössbauer neutron diffraction observed octahedral olivines orbital order parameter orthopyroxene orthorhombic oxides pairs perovskite phase diagrams phase transition Phys polytypes polytypic phases predicted pyroxenes quartz Salje sample shown in Fig silicates SiO2 solid solutions space group spin glass ẞ phase susceptibility symmetry temperature dependence thermal expansion thermodynamic tion transformation X-ray zero pressure